Spring-clamp.



I. B. HOIVIAN'.

SPRING CLAMP.

APPLICATION FILED JAN. 13, 19m.

Patented Apr. 6, 1915.

amveuto'a M 3 i that I lR'WIN HOMAN, a United Shares, residing at countyof Lebanon and State have invented certain new provenients inSpring-Clamps rcby declare the following to be r, and e acit descriptionof the inll enable others skilled in h it appertains to make and ionrelates spring; clamps rails girders and other simif creepinglongitudinally; in the novel construction of rciioafter I12 lar ,i andit so the perils claimed.

provided. with a to this inventionw the spring cl of the spring clamp.

r cl cm is formed of a metallic 2 Wnich is adapted to extend a the botfiom flanges 3 of a rail girder or ban prevented from creeping. 53 hasspring lugs 4 at its ends Whici mick-shaped in form, and which areadapted to on the upper surti 3 3 'tom flanges 'zhe rail. These logs are't laterally oi. the plate or bar 2 in opposite direm 3 plan. view one,so that they are substantially paraiiel "to each other and so that Ithey can he slipped upwardly to straddle the base of the rail. The plateor bar is then partially revolved under the rail so that the lugs engagewith and clip the rail flanges.

A projection or stop 6 is provided at the middle part of the plate orbar, Which extends doWnWa-i ly and vertically and which is twisted sothat it forms an acute angle with. the main portion of the plate or bar.a ihen the clamp is forced into close engagement with the base flanges,the projection 6 comes parallel to the cross-tie, or sill, whichsupports the rail. The clamp is forced or Specification of LettersPatent.

Patented Apr. 6, 19315.

hammered along the rail until the projection 6 bears against thecross-tie, and thereby prevents the rail from creeping.

The lugs spring a little when hammered into engagement with the rail andthey grip its base flanges tightl Jln inclined lug 01 tooth 8 is formedat the middle part of the top edge of the plate or bar 2, and this lughas a sharp corner 9 at its top which engages with the bottom of therail and prevents the spring lugs from slipping.

in the device shown, the bar or plate 2 is partially revolved in thedirection of the curved arrow in Fig. 3, to enable the spring lugs toclamp the flanges, but, when the spring 1 cs 4 and the projection 6 areinclined in the reverse direction, fihe bar or p ate is revolved in theopposite direction. The devices can be made either Way, right or lefthanch as found convenient, in carrying out this invention.

What I claim is:

1. An anti-creeping clamp, comprising a vertical plate havinghook-shaped lugs at its ends for engaging the bottom flanges of a rail,said plate having at itsmiddle part, between the said lugs, a verticalstop formed of an extension of. the middle part of the plate andarranged at an angle thereto, the top of the stop and the bottom of themain portion of the plate being twisted and inclined do'vvnwardly attheir junction.

2. An anti-creeping spring clamp comprising a bar or plate havinghooleshaped lugs at its ends Which are inclined laterally of it inopposite directions, and having also at its middle part a twistedprojection or stop which projects downwardly, said bar or plate havingalso at the middle part of its upper edge an inclined locking lug ortooth having a sharp corner at its top.

In testimony whereof I have ailixed my signature in the presence of twoWitnesses.

Dill VIN B. HUMAN.

Witnesses:

HARRY R; HEILMAN, MAURICE K. FQRNEY.

